private void DetachInterfacesInternal()
 {
     this.activeXOleObject              = null;
     this.activeXOleInPlaceObject       = null;
     this.activexOleInPlaceActiveObject = null;
     this.activeXOleControl             = null;
     this.DetachInterfaces();
 }
 private void AttachInterfacesInternal()
 {
     this.activeXOleObject              = (UnsafeNativeMethods.IOleObject) this.ActiveXInstance;
     this.activeXOleInPlaceObject       = (UnsafeNativeMethods.IOleInPlaceObject) this.ActiveXInstance;
     this.activexOleInPlaceActiveObject = (UnsafeNativeMethods.IOleInPlaceActiveObject) this.ActiveXInstance;
     this.activeXOleControl             = (UnsafeNativeMethods.IOleControl) this.ActiveXInstance;
     this.AttachInterfaces(this.ActiveXInstance);
 }
 private void DetachInterfacesInternal() {
     this.axOleObject = null;
     this.axOleInPlaceObject = null;
     this.axOleInPlaceActiveObject = null;
     this.axOleControl = null;
     //
     // Lets give the inheriting classes a chance to release
     // their cached interfaces of the ActiveX object.
     DetachInterfaces();
 }
 private void AttachInterfacesInternal() {
     Debug.Assert(activeXInstance != null, "The native control is null");
     this.axOleObject = (UnsafeNativeMethods.IOleObject)activeXInstance;
     this.axOleInPlaceObject = (UnsafeNativeMethods.IOleInPlaceObject)activeXInstance;
     this.axOleInPlaceActiveObject = (UnsafeNativeMethods.IOleInPlaceActiveObject)activeXInstance;
     this.axOleControl = (UnsafeNativeMethods.IOleControl)activeXInstance;
     //
     // Lets give the inheriting classes a chance to cast
     // the ActiveX object to the appropriate interfaces.
     AttachInterfaces(activeXInstance);
 }
Exemplo n.º 5
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 private UnsafeNativeMethods.IOleControl GetOleControl() {
     if (iOleControl == null) {
         Debug.Assert(instance != null, "must have the ocx");
         iOleControl = (UnsafeNativeMethods.IOleControl) instance;
     }
     return iOleControl;
 }
Exemplo n.º 6
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        private void ReleaseAxControl() {
            // This line is like a bit of magic...
            // sometimes, we crash with it on,
            // sometimes, with it off...
            // Lately, I have decided to leave it on...
            // (oh, yes, and the crashes seemed to disappear...)
            //cpr: ComLib.Release(instance);

            this.NoComponentChangeEvents++;

            ContainerControl f = ContainingControl;
            if (f != null) {
                f.VisibleChanged -= this.onContainerVisibleChanged;
            }

            try {
                if (instance != null) {
                    Marshal.FinalReleaseComObject(instance);
                    instance = null;                
                    iOleInPlaceObject = null;
                    iOleObject = null;
                    iOleControl = null;
                    iOleInPlaceActiveObject = null;
                    iOleInPlaceActiveObjectExternal = null;
                    iPerPropertyBrowsing = null;
                    iCategorizeProperties = null;
                    iPersistStream = null;
                    iPersistStreamInit = null;
                    iPersistStorage = null;
                }
                
                axState[checkedIppb] = false;
                axState[checkedCP] = false;
                axState[disposed] = true;

                freezeCount = 0;
                axState[sinkAttached] = false;
                wndprocAddr = IntPtr.Zero;

                SetOcState(OC_PASSIVE);
            }
            finally {
                this.NoComponentChangeEvents--;
            }
        }